[INFO] fetching crate staff 0.11.0...
[INFO] checking staff-0.11.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate staff 0.11.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate staff 0.11.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate staff 0.11.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate staff 0.11.0
[INFO] tweaked toml for crates.io crate staff 0.11.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate staff 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded concoct v0.7.0
[INFO] [stderr]   Downloaded syn v2.0.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75c15446bdcdb8668740d949422d4dd31a23e1f7f513929137b3cffc97789767
[INFO] running `Command { std: "docker" "start" "-a" "75c15446bdcdb8668740d949422d4dd31a23e1f7f513929137b3cffc97789767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75c15446bdcdb8668740d949422d4dd31a23e1f7f513929137b3cffc97789767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c15446bdcdb8668740d949422d4dd31a23e1f7f513929137b3cffc97789767", kill_on_drop: false }`
[INFO] [stdout] 75c15446bdcdb8668740d949422d4dd31a23e1f7f513929137b3cffc97789767
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18d81757bd82eb6e88ff9d0cac16e578156e4376b11f54054fc725b5c021b7df
[INFO] running `Command { std: "docker" "start" "-a" "18d81757bd82eb6e88ff9d0cac16e578156e4376b11f54054fc725b5c021b7df", kill_on_drop: false }`
[INFO] [stderr] warning: invalid feature `synth` in required-features of target `synth`: `synth` is not present in [features] section
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.35
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.87
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.87
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]     Checking js-sys v0.3.64
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking web-sys v0.3.64
[INFO] [stderr]     Checking concoct v0.7.0
[INFO] [stderr]     Checking staff v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `diagram` is never read
[INFO] [stdout]  --> src/ui/fret_diagram.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FretDiagram {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     diagram: Diagram,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `diagram` is never read
[INFO] [stdout]  --> src/ui/fret_diagram.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FretDiagram {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     diagram: Diagram,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.74s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.87
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "18d81757bd82eb6e88ff9d0cac16e578156e4376b11f54054fc725b5c021b7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d81757bd82eb6e88ff9d0cac16e578156e4376b11f54054fc725b5c021b7df", kill_on_drop: false }`
[INFO] [stdout] 18d81757bd82eb6e88ff9d0cac16e578156e4376b11f54054fc725b5c021b7df